21230023132323 has 64 divisors (see below), whose sum is σ = 32003257104000. Its totient is φ = 13907399639040.

The previous prime is 21230023132313. The next prime is 21230023132327. The reversal of 21230023132323 is 32323132003212.

21230023132323 is a `hidden beast` number, since 2 + 1 + 2 + 300 + 2 + 3 + 1 + 32 + 323 = 666.

It is not a de Polignac number, because 21230023132323 - 2⁸ = 21230023132067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (21230023132327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1011858493 + ... + 1011879473.

It is an arithmetic number, because the mean of its divisors is an integer number (500050892250).

Almost surely, 2^{21230023132323} is an apocalyptic number.

21230023132323 is a deficient number, since it is larger than the sum of its proper divisors (10773233971677).

21230023132323 is a wasteful number, since it uses less digits than its factorization.

21230023132323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23829 (or 23823 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 21230023132323 its reverse (32323132003212), we get a palindrome (53553155135535).

The spelling of 21230023132323 in words is "twenty-one trillion, two hundred thirty billion, twenty-three million, one hundred thirty-two thousand, three hundred twenty-three".